Gree FCU Series, Service Manual

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Unit Installation
67
(2) Power lines
Type and size of the power lines should meet relative design regulations. When there is no specific
regulation, the minimal sectional area of the conduct cores under different laying mode should refer to
the user
’s manual of the FCU.
(3) Anti-corrosion materials
The commonly used anti-corrosion materials include paint, resin and asphalt etc.
2. Installation
2.1 Precautions for Installation
(1) The unit should be installed in accordance with instructions covered
in the user’s manual and
make sure enough maintenance space is reserved around the unit. The air inlet and outlet should
be far away from obstacles, so that air flow can go through everywhere of the room. When the
heat exchanging room is too small, it would lead to decreased capacity.
(2) The unit should be installed where no smog, corrosive and inflammable gases are present,
otherwise the unit would fail to run normally or its service life would be shortened.
(3) The supply air outlets, return air inlets, ducts and diffusers should be arranged properly so that
the supply air flow will be even and smooth. For where there is high requirement on noise, back
return air should be adopted rather than downward return air, like offices, guest rooms of the
hotels, wards of hospitals. Insulation can be used for ducts to reduce noise.